OBL Files Amicus Brief to Defend Voluntary Payment Doctrine

09/30/26

OBL filed an amicus brief with the Supreme Court of Ohio on September 29 in Klopfenstein v. Fifth Third Bank, urging the Court to preserve Ohio's longstanding voluntary payment doctrine. The Community Bankers Association of Ohio (CBAO) and the American Bankers Association (ABA) joined OBL in supporting the industry.

The doctrine generally prevents someone who voluntarily pays with knowledge of the relevant facts from later recovering that payment simply because they interpret the contract differently. It encourages timely resolution of disputes and provides certainty about when completed transactions can be treated as settled.

For bankers, the implications extend well beyond the parties in this case. Banks rely on standardized agreements and required disclosures for deposit accounts, mortgages, consumer loans and other everyday products. Weakening the doctrine could expose completed transactions to challenges years later, increasing litigation costs and uncertainty in managing potential liabilities.

Our brief argues that knowing the facts surrounding a payment is different from understanding every legal consequence of those facts. A later disagreement over contractual language, including allegedly conflicting price terms, should not automatically make the doctrine unavailable. Nor should banks receive less protection because they use standardized agreements and disclosures that federal consumer protection laws often require.

OBL's participation brings the broader industry perspective before the Court, explaining how its answers could affect banks of every size and the customers they serve. Through this work, OBL is defending legal principles our members rely on to administer accounts, manage risk and serve their communities.